Because she is mine

Ying Zao and Gongzhu reached outside Gongzhu's father's home which was a big villa. They stepped down the car when Gongzhu walked to Ying Zao. She buttoned up his collar button. "My father likes gentleman with good dressing style," stated Gongzhu and then stepped back. 

"Let's go then," said Gongzhu, looking at Ying Zao who gave a nod and they entered inside the huge entrance. They kept walking until a person came there. He was quite old and bowed his head slightly in front of Gongzhu. "It is good to see princess after a month," said the old man and raised his head to look at her and then looked at Ying Zao who passed a tiny smile to him. 

"Zao, this is the butler of my house, Mr. Song Ci. Uncle Ci, this is Ying Zao," Gongzhu introduced them. They both shook hands with each other when Song Ci told Gongzhu that she should go in as her father was waiting for her for an hour. Gongzhu nodded and then turned to look at Ying Zao.